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<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Hi, all</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"> I can't mount a disk with slotnum=4, other slots could mount successfully. Err msg is:</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"> root@cvk41:~# mount /dev/sdi /vms/gqg-1T<span style="color:red"> -o preferred_slot=4</span></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"> mount.ocfs2: Invalid argument while mounting /dev/sdi on /vms/gqg-1T. Check 'dmesg' for more information on this error.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Dec 16 11:25:42 cvknode kernel: [ 5409.023779] o2dlm: Joining domain 9B244483B1C04B76A1AAEB3A5D09847B ( 1 2 4 5 6 ) 5 nodes</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Dec 16 11:25:42 cvknode kernel: [ 5409.041933]
<span style="color:red">JBD2: no valid journal superblock found</span></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Dec 16 11:25:42 cvknode kernel: [ 5409.041939] (mount.ocfs2,23379,11):ocfs2_journal_wipe:1113 ERROR: status = -22</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Dec 16 11:25:42 cvknode kernel: [ 5409.041971] (mount.ocfs2,23379,11):ocfs2_check_volume:2449 ERROR: status = -22</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Dec 16 11:25:42 cvknode kernel: [ 5409.041974] (mount.ocfs2,23379,11):ocfs2_check_volume:2510 ERROR: status = -22</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Dec 16 11:25:42 cvknode kernel: [ 5409.041978] (mount.ocfs2,23379,11):ocfs2_mount_volume:1889 ERROR: status = -22</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Dec 16 11:25:42 cvknode kernel: [ 5409.043947] o2dlm: Node 3 joins domain 9B244483B1C04B76A1AAEB3A5D09847B ( 1 2 3 4 5 6 ) 6 nodes</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Dec 16 11:25:46 cvknode kernel: [ 5413.076279] o2dlm: Leaving domain 9B244483B1C04B76A1AAEB3A5D09847B</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Dec 16 11:25:46 cvknode kernel: [ 5413.076732] ocfs2: Unmounting device (8,128) on (node 2)</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">I dumped //journal:0004 with hexdump, and found the fist block (4KB) maybe changed.</span></p>
<p class="MsoNormal"><span lang="EN-US">//journal:0000</span></p>
<p class="MsoNormal"><span lang="EN-US">root@cvk41:~# hexdump -C -n 1024 -s 0x600000 /dev/dm-4</span></p>
<p class="MsoNormal"><span lang="EN-US">00600000 <b>c0 3b 39 98</b> 00 00 00 04 00 00 00 00
<b>00 00 10 00</b> |.;9.............|</span></p>
<p class="MsoNormal"><span lang="EN-US">00600010 00 00 80 00 00 00 00 01 00 06 2d ef 00 00 00 07 |..........-.....|</span></p>
<p class="MsoNormal"><span lang="EN-US">00600020 00 00 00 00 00 00 00 00 00 00 00 02 00 00 00 00 |................|</span></p>
<p class="MsoNormal"><span lang="EN-US">00600030 9b 24 44 83 b1 c0 4b 76 a1 aa eb 3a 5d 09 84 7b |.$D...Kv...:]..{|</span></p>
<p class="MsoNormal"><span lang="EN-US">00600040 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 |................|</span></p>
<p class="MsoNormal"><span lang="EN-US">00600050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|</span></p>
<p class="MsoNormal"><span lang="EN-US">*</span></p>
<p class="MsoNormal"><span lang="EN-US">00600400</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">//journal:0004</span></p>
<p class="MsoNormal"><span lang="EN-US">root@cvk41:~# hexdump -C -n 1024 -s 0x20600000 /dev/dm-4
</span></p>
<p class="MsoNormal"><span lang="EN-US">20600000 <b>c0 3b 39 98</b> <b><span style="color:red">00 00 00 02</span></b><span style="color:red">
</span>00 00 e0 d3 <b><span style="color:red">00 00 00 00</span></b> |.;9.............|</span></p>
<p class="MsoNormal"><span lang="EN-US">20600010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|</span></p>
<p class="MsoNormal"><span lang="EN-US">*</span></p>
<p class="MsoNormal"><span lang="EN-US">20600030 00 00 00 00 56 0b 0f d7 01 e5 84 c2 00 00 00 00 |....V...........|</span></p>
<p class="MsoNormal"><span lang="EN-US">20600040 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|</span></p>
<p class="MsoNormal"><span lang="EN-US">*</span></p>
<p class="MsoNormal"><span lang="EN-US">20600400</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">In first block, the journal type is 02(JBD2_COMMIT_BLOCK) other than 04(JBD2_SUPERBLOCK_V2).</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">This disk has been idled for a long time, but I think the first block was written by formatting, and none operations could change it.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">So I can't understand which operations could cause to my issue.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">The attachment is a file which is dumped by "</span><span lang="EN-US">
</span><span lang="EN-US" style="font-size:14.0pt">logdump slot4". </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt">Thanks a lot!!</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:14.0pt"> </span></p>
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